Separable multiple form



Jan. 24, 1928.

C. T. JOSLIN SEPARABLE MULTIPLE FORM Filed July 50. 1925 /N VEN TOR /)ar/es 7.' ./os//h Patented Jan. 24, 1928.

UNITED STATES CHARLES T. JOSLIN, F FEURA BUSH, NEW YORK.

SEPARABL MULTIPLE FORM.

Application filed Iuly 30, 1925.

The present invention relates to a mold or form to be used in casting posts from plastic material such as concrete or cement. More particularly it relates to molds of this general character which are separable and in which a plurality of posts may be cast at one operation.

Many States and municipalities `have adopted a standard post for guide railing which is placed along 'the sides of a highway for the purpose ofA indicating to -the drivers of vehicles a dangerous change in elevation between the highway and the land on either side. These posits are of concrete and triangula'r in cross-section. Heretofore, in fabricating these posts the practice has been to have a separate form or mold for each post and to cast them in a horizont-al position. The posts are generally reinforced by a steel bar in each corner ofthe triangle, and when the posts are cast horizontal it `is necessary to stop the operation of pouring concrete at least twice in order that the reinforcement may be placed in proper position. This method ofcasting requires a large number of individual forms which occupy a considerablerspace, the concrete must be distributed along the; length of each form, and eith'erthe distributing means or the forms themselves must be moved each time -a form is filled. i

The objects ofmy invention,'therefore,

are to provide a form or mold in Whicli'a plurality ofposts may be cast at one pouring operation w'i'thout moving either the concretedistributing means or theform or mold,- and'to provide a device of this character in which the posts'imay be castY in 'a vertical position thereby permitting the-re'-A inforcement to be inserted either prior 'or subsequent to the pouring :of the concrete so thatboth the operation 'of pourin and the operation of inserting the rein orcernent may be conducted without interruption.

Another object of my invention is to so assemble a number of individual post-forms or molds as to greatly reduc'frthe number of platesor units required. A further object ot my invention is to provide am'ultiple forni or mold made up of a minimum of separateelementswhich may be readily as-.

sembled toform a unit of convenient size and in'which the elements` are readily'separable for the purpose of removingthe post and u'cleaning andoiling the elements.

With these' objects in view my'inventi'on Serial No. 47,141.

fragmentary portion of the central post used in my form; y

Fig. 4 is an enlarged cross-sectional view of the central post showing fragmentary portions of the radial plates;

Fig. 5 is a broken elevation view of the concrete post which my mold is designed to cast; l

Fig. 6 is a top view of this post;

Fig. 7 is a half-plan view of a polygonal funnel or hopper which may be used in conjunction with my form;

Fig. 8 is a vertical cross-sectional view of Fig. 7 on the line 8-8.

In considering the drawings it is tol be understood that they are not to scale and that for the purpose of clarityl the plates which go to make up my form or mold are greatly exaggerated in thickness.

Referring to the drawing, l, representsa concrete post which is in the form, of a triangular prism having rounded edges, 2 and 3, and a flat or truncated edge, 4. The top of the post which is preferably pyramidal, aspshown at 5, may, of course, be flat or of any other convenient form.

Referring'particularly to Figs. l and E2 my mold comprises a base, 6, preferably of cast-iron, circular in cross-section, and provided at its center with a recess, 7, adapted to receive the bottom end of the central post, 8. rlhe post, 8, may be an integral unit, hexagonal in cross-section and provided along each vertical edge thereof with a recess adapted to receive the radial plates` '9. However, I prefer -to construct the post,

8, of pipe, as illustratedinlthe drawing and give it asubstantially hexagonal contour by bolting or welding along the exterior there of plates, 1Ql and 11. This construction is 'perhaps best shown in Fig. 4. The inside plates, 1l, are narrower than the outside plates, 10, and the vertically extending edges of plates, l0, are slightly spaced to provide Y an opening into which the vertical edges of,

lll)

radial plates, 9, may be inserted.n The plates, 10 and 11,"are secured to the post, V8,

b v means of bolts or rivets, 12, and the plates, 1() and; 11, extend from the top of post, 8, to a point somewhat above the bottom thereof, as shown in Fig. 3, thus pro- 1: viding a short portion. of pipe, 8, which is adapted to fit rather snugly in the recess, '7, provided in base, 6. Disposed circumferentially on the top of the base, 6, are six equal.-v ly spaced lugs, 13, provided with radial recesses, 14, adapted toV receive the1outer botvertical edges of plates, 15, are curved inl wardly to a suitable radius Eso that the cor.- ners ofthe posts.. will be rounded.,. l/Vhile the drawing illustrates t-hesefplates of substantiaLthickness, in practice, they maybe very light. 'For this reason I prefer to rcinforce them at the points shown in Fig. 2 by welding or riveting the fiat bars, `16, thereon. The bars, 16, also holdthe straps, 17, away from the' outer edges of the radial plates so that when the nuts, 18, ,on the straps are ti htened the"` .circumferential plates aretirm y compressed into the spaces between the radial plates. -'I`he'straps, 17, are preferably of thin metal and are provided With the lugs,`.19, which Iare adapted to receive the tightening bolts, 20.

In assembling my form or mold the post, 8, is first insertedgin the center of the base.. The radial plates, 9are next positioned by placing them vinthe:recesses of the posts and so that the lower outer corners engage -t-he recesses in thejlugs, 13. The .circumferenf tial plates are thenset in position andsecured by tightening the straps, 17.v

When the posts are, ,to be castwithsquare.

ends, nopartic'ular .form of base is required and the plates, 10 11, on.post, 8, ma

extend from vend to end of thev post so that the form may be assembled upon any fiat surface. When it is desiredto cast the p.ost.

with a pyramidal or other shaped end, recesses, 21, of the desired..configuration are provided -in the fbase at the botto-m ofeach of .thetriangular,molds It will thus be obvio-us .that thel posts are cast in an inverted position.

It will be clear that recessesfor openings of any size or shape -mavbe provided vin the posts Aplacing suitable projections uponA the interior. of the Vmold. v. When. .the posts are intendedto be used with oable.railing it is usual to attach. thisrailing; to the posts by means of hook. boltsextendingf, through openings, 22, prowfidedin the posts For the ,purpose of forming these .holesfor the ,recept-ion-' rof tsucia` bolt s ,I prox-'idefthe openings, .23a l.in the circumferential. plates, Y

Shortroun'ded ,barsiisnch .as shown .by Athe dotted lines, 24, in Fig. 42 may Vbe inserted through these holes and into holes, 25, -provided in the central post.

In pouring concrete into my mold I find it very convenient to use a hexagonal funparts required by this form-vof assembly than in any other.

While I have .described my invention with some .particularity` it is to be understood-that the Words which I have used are Words Vof description and not of limitation. And I wish-it further understood that I am not limited to the precise details or combina tions thereof disclosed in thisapplication but that changes Within the purview of the appended. claims may be made Without departing from the scope and spirit of this invention.

Vv'hat I claim is:

1. A form or mold comprising a base pro vided with a plurality of recesestherein andi angularly disposed platesforming a plurality of adjacent triangular-prisms above and about said recesses.

2. Ina. form or vmold for concreteposts,.r the combination with a verticallydisposed' post .provided .with means positioning -vertically disposed .plates radiatingtherefrom-..

of circumferentiallyf. disposedvrplates, and `means for. Wedging the..v `circuimferential l.plates into tight contact Withthe radial platesto form a substantiallyunitary.structure.

3. In a form or moldfor concreteposts,x

trally disposed..,post.. thereon Aand provided` the combination. with a base having. a cen--` llt) with a plurality of depressions aboutv said post, of plates radiating. from saidfpost and coacting. with positioning 4means .on-.said base, circumferentiallplates, and. means for...

wedgingv the circumferential plates ,into intimate Contact ,with theradialplates to form .a substantially `unitary structure.

t. A form ormold for a post comprising a base provided with a recessl adaptedto vmold an ornamental-.end on saidpost, separable plates removably. mounted .on said base, fand.. means mfor holding said .plates .to-

post. 5. A form or lmold comprisingabase-fpro- .vided with symmetrically disposeddepres,

sions -therein adapted ,to mold. ornamental 4ends 'on a plurality, of posts,radiallyfdis@ 1get herto form a mold.. for'-the bodyof the posed plates positioned between said; depresassociated with said base, ciieuinferential mold ornamental tops on a plurality of plates interposed between said radial plates posts, separable plates disposed about said to form laterally closed cells and means serecesses and rising from said base to form l0 curing said last mentioned plates in posia plurality of vertically extending cellular 5 tion. forms, and means for securing the Whole in 6. A form or mold comprising a base roassembled relation. vided with depressions therein adapte to CHARLES T. JOSLIN. 

